Heller, R. <br/><br/>
New trends in biology teaching 

 - Paris :  UNESCO,  1967-71 
 - 3 v.  : ilus. 
 - The teaching of basic sciences  ; Biology .
 - The teaching of basic sciences  ; Biology .
<br/><br/><label>LCCN: </label>13138 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biología--Estudio y enseñanza.
<br/><br/><label>Dewey Class. No.: </label>574.07  / H4